Welcome! I've been trolling hdtimeline since I got my used 2010 Fat Bob. I've learned a lot of good stuff from this site.
I had a heat problem, sometimes it felt like I was sitting on an oven. Last month I got a Dobeck Electronic Fuel Injection controller for my Fat Bob and now it seems 50 degrees cooler. Although I have never actually measured it, I guess it would have been way over 400 degrees before, but now I need to put my hand out to check if the engine's hot. Gas mileage went up 2 miles per gallon, and the Thunderheaders still roar but lost a lot of that cold startup brass.
My foot pegs scrape the road on turns a few times a month, so if I got floorboards they would have to be narrow. I've been thinking more of putting foot pegs on the engine guards for my next long ride.